Spam: One Pozzled Problem for E-Commerce

E-commerce has advantages of low bargaining cost, full field service, and convenient. Its development forms and promotes the key factor of the global economic growth, and the security problem of e-commerce becomes more and more important thereupon. It is the subject of a great meaning to structure the safe, convenient e-commerce running environment. The task of anti-spam is a concrete content among them. This paper discusses the source and danger of spam, and the precautionary and radical cure measures of spam are put forwarded, and the technologies of the anti-spam are discussed especially.     

Spam: One Puzzled Problem for E-Commerce

E-commerce has advantages of low bargaining cost, full field service, and convenient. Its development forms and promotes the key factor of the global economic growth, and the security problem of e-commerce becomes more and more important thereupon. It is the subject of a great meaning to structure the safe, convenient e-commerce running environment. The task of anti-spam is a concrete content among them. This paper discusses the source and danger of spam, and the precautionary and radical cure measures of spam are put forwarded, and the technologies of the anti-spam are discussed especially.     

一种透明邮件过滤模型研究与实现

垃圾邮件的猖獗对反垃圾邮件技术提出了更高的要求。目前反垃圾邮件网关模型单一，可扩展性和跨平台性都比较差。本文针对这种情况提出了一种透明的反垃圾邮件网关模型。这种模型与企业网络的邮件服务器相互独立。而且它能够有效的利用目前以及将来出现的反垃圾邮件技术，具有良好的可扩展性。文章首先介绍了邮件以及反垃圾邮件技术，然后介绍了这种透明模型的实现，并分析了其性能上的优势与弱点，最后提出了在将来工作中需要进一步加强研究的方面。     

灰名单技术在电子邮件系统中的应用研究

随着Internet的不断发展,垃圾邮件泛滥的问题日趋严重。因而,包括灰名单在内的众多反垃圾邮件技术也应运而生。论文介绍了灰名单技术的工作原理及其优点,并就灰名单技术存在的问题进行了分析。     

最小风险的Naive Bayes技术在反垃圾邮件系统中的应用

文章提出了一套更好地过滤中文垃圾邮件的方案，这套方案将利用垃圾邮件规律的规则过滤和最小风险的Naive Bayes内容过滤算法结合了起来，并根据垃圾邮件的特性做了必要的改进。并且这套方案也在Linux／Solaris系统平台下基本上完成了大部分功能的软件编程。实际电子邮件服务器上对本方案进行了测试．结果显示这套方案取得了很好的过滤效果。最小风险的Naive Bayes技术是目前最重要的反垃圾邮件技术之一。     

Research of Anti-spam System Basing on Immunity System and Mobile Agent

The human immune system has the function of self- discern. It can identify the non - self antigen and clear it through the immune response automatically. So, human body has the power of resisting disease. The anti - spare system basing on immune system is proposed by using immune system＇s theory,and it is introduced in the mail service of enterprise VPN. Regard VPN as the human body, the mobile agent is simulated the antibody because of its movable and intelligent, and the spare is simulated the antigen. It can clear the spare by using immune mechanism. This method is a new thinking of anti - spare mail. The advantage is overcoming the weakness on independence of traditional anti - spare system.     

电子邮票系统的设计与改进

垃圾邮件日益泛滥,严重损害了互联网服务提供商和消费者的利益。介绍了现有的反垃圾邮件的技术发展与现状,在分析电子邮票系统设计的基础上,提出了一种基于分布式的信誉度管理进行垃圾邮件防护的方法。同时,针对信誉度方法,给出了新的系统信誉层次结构的具体框架和实现垃圾邮件防护的过程。理论和实验结果表明：该方法可以有效地提高邮件的误判率,从而弥补了基于发送许可的邮件验证系统所产生的缺陷。     

反垃圾邮件过滤技术探讨

首先分析了垃圾邮件在我国泛滥的严重性，然后列举了现今被广泛使用的反垃圾邮件过滤技术，并重点分析了贝叶斯过滤技术在反垃圾邮件实践中的应用，最后对未来反垃圾邮件过滤技术提出了展望。     

基于JSP网上购书系统的设计与实现

针对传统销售方式中不便于管理、效率低等缺点,将电子商务技术和计算机技术结合起来,开发出管理更便利、效率更高的网上图书销售系统.本系统基于B/S三层体系结构和Struts开发框架,采用JDBC数据库访问技术和Tomcat应用服务器等关键技术,并对系统功能进行分析,得出4个功能模块：图书浏览、购物车管理、订单管理和用户管理.功能的实现是基于JSP.技术与JAVA相结合,最终设计并实现了一个功能强大的图书销售系统平台.     

反垃圾邮件网关技术的标准进展

随着互联网的高速发展,反垃圾邮件网关已经成为阻止垃圾邮件日益泛滥的有力武器。本文介绍了反垃圾邮件网关的技术现状及其标准的进展情况。     

基于MVC模式的网上书城系统的设计与实现

随着Internet技术的快速发展,网上购物已成为人们生活方式中的重要选择。与传统购物相比,它具有选择面大、价格便宜、交易方便、节省时间等优势。由于M VC模式开发的系统具有可维护性、可扩展性、可移植性和组件可复用性等特点,越来越多的中小型电子商务网站开发都采用此模式。本系统采用M VC模式进行开发,具备完备的前、后台处理功能,能满足用户基本的网上购书需求。     

基于电子商务背景的智能挖掘技术及其应用研究

在日常商业运营过程中,操作系统会产生大量的数据,将这些数据有效运用在决策系统中,可以有很大的增值效益。随着网络技术和数据库技术的成熟,全球传统商务正经历一次重大变革,向电子商务全速挺进。这种商业电子化的趋势不仅为客户提供了便利的交易方式和广泛的选择,同时也为商家提供了更加深入地了解客户需求信息和购物行为特征的可能性。数据挖掘技术作为电子商务的重要应用技术之一,将为正确的商业决策提供强有力的支持和可靠的保证。     

Enhancing customer value through click-and-mortar e-commerce: implications for geographical market reach and customer type

Firms continue to focus more attention on how to make use of the Internet for commercial purposes. Traditional firms are integrating their existing market channels and their online presence, into what is often called click-and-mortar e-commerce. In this paper we will discuss how click-and-mortar e-commerce generates synergies and customer value, and what implications it has for the type of customers and the geographical market a firm serves. The analysis of eighteen Dutch firms from a variety of industries has the following results. First of all, click-and-mortar e-commerce is used to strengthen relations with existing customers in geographical markets where firms are already active. Secondly, click-and-mortar firms are able to serve relocating customers and re-establish contact with customers who have moved away. Thirdly, click-and-mortar e-commerce can make it easier and less costly to make a purchase within a firm’s existing market, which may have the effect of bringing in new customers in that market. Contrary to the usual expectations for e-commerce, click-and-mortar e-commerce are to a lesser extent used to penetrate new, more distant geographical markets, nationally as well as internationally. The case studies also indicate that the degree of click-and-mortar e-commerce integration influences the way in which firms exploit synergies, as well as the possibilities to target different customers and geographical markets.     

An Improved Bayesian with Application to Anti-Spam Email

Along with the wide application of e-mail nowadays, many spam e-mails flood into people‘s email-boxes and cause catastrophes to their study and life. In anti-spam e-mails campaign, we depend on not only legal measures but also technological approaches. The Bayesian classifier provides a simple and effective approach to discriminate classification. This paper presents a new improved Bayesian-based anti-spam e-mail filter. We adopt a way of attribute selection based on word entropy, use vector weights which are represented by word frequency, and deduce its corresponding formula. It is proved that our filter improves total performances apparently in our experiment.     

Classification of design parameters for E-commerce websites: A novel fuzzy Kano approach

Websites have gained vital importance for organizations along with the growing competition in the world market. It is known that usability requirements heavily depend on the type, audience and purpose of websites. For the e-commerce environment, usability assessment of a website is required to figure out the impact of website design on customer purchases. Thus, usability assessment and design of online pages have become the subject of many scientific studies. However, in any of these studies, design parameters were not identified in such a detailed way, and they were not classified in line with customer expectations to assess the overall usability of an e-commerce website. This study therefore aims to analyze and classify design parameters according to customer expectations in order to evaluate the usability of e-commerce websites in a more comprehensive manner. Four websites are assessed using the proposed novel approach with respect to the identified design parameters and the usability scores of the websites are examined. It is revealed that the websites with high usability score are more preferred by customers. Therefore, it is indicated that usability of e-commerce websites affects customer purchases.     

3G时代的移动电子商务的安全思考

3G移动通信技术已经在国内外广泛应用,受此推动的移动电子商务用户数和应用近年来也在快速增长,但其安全问题也引起人们的高度重视。移动电子商务存在一般电子商务的安全隐患,同时也有基于自身特点的安全问题。而目前有关的安全技术和安全措施的研究和实施,将推动移动电子商务继续发展和逐渐普及。     

A Study on the Application Model of B2B E-Commerce in the Agricultural Sector

There are two main application models of B2B e-commerce, which are best suitable for agricultural sector. One is the e-market intermediation model (EMIM), and the other is the Integrative content center model (ICCM). Based on the analysis of these two models in application field of agriculture, a conclusion is drawn that these two models will be the main application ones of agricultural e-commerce at present, while ICCM will be a transition from local e-commerce to integrative e-commerce. The future development of agricultural e-commerce will follow the direction of integrative e-commerce which is based on the supply chain model on the E-Hubs. And a new framework of integrative e-commerce is presented as a conclusion at last.     

高校误判垃圾邮件自动召回系统的研究与实现

垃圾邮件的误判问题一直是反垃圾邮件领域中未能得到根本解决的难点。基于清华大学邮箱系统及反垃圾邮件网关系统进行了一整年的部署和实验（2011年9月至2012年10月）,通过用户对可疑垃圾邮件点击召回的历史行为进行分析,并采用对其感兴趣的垃圾邮件进行文本相似度计算以及关键参数预测的方法来智能化预测用户对当前某一封垃圾邮件的感兴趣程度,即基于用户主观的选择和体验来帮助用户自动召回其可能感兴趣、然而却被反垃圾邮件网关误判的垃圾邮件,解决了传统过滤方法无法杜绝误判的问题。     

E-commerce patents and shifting balances in patent law

The rules with respect to the patentability of software and business method inventions have loosened over the last decade to allow a broader range of patentability. Many patents issuing today are in the e-commerce area, and there is often a close relationship between what is being patented and generation of wealth. Critics of the surge of e-commerce patents argue these patents may stifle development of e-commerce. The level of concern of critics may be unwarranted since the broader range of patentability that has occurred has been balanced somewhat against a narrower scope of protection occurring during the same time period as a result of more restrictive claim interpretation during enforcement of patents. This more restrictive claim interpretation has created an onus on patent owners to effectively draft and prosecute patents to obtain protection commensurate with the scope of the inventions     

A Survey of E-Commerce Security

E-commerce is a very active field of Internet research. A very important aspect of e-commerce is its security. Because of the variety of e-commerce applications, many security policies, protocols and techniques are involved in the deployment of the security. The related standards and protocols of e-commerce are studied in this paper. The general model of e-commerce security is set forth. In this model, two most important e-commerce protocols including secure sockets layer (SSL) and secure electronic transaction (SET) are analyzed. The open problems and new trends of e-commerce security are presented.